Revolutionize Gameplay with Book of Books Slot from Peter & Sons


Peter & Sons, the innovative gaming software developer, has unveiled its newest title through the Yggdrasil's YG Masters program: the Book of Books slot. This exciting addition to the gaming world is set to captivate players for hours on end with its unique features and thrilling gameplay.

Max Winning Potential

Book of Books diverges from the typical 'Book of' genre by offering a 5-reel, 40-payline slot game that incorporates novel power-ups and mechanics. These include expanding symbols, payout multipliers, and an impressive maximum payout of 10,000 times the original bet.

To activate the 7 extra spins feature, players must land three scatter symbols on the reels. These extra spins occur on a 5x3 grid with 10 paylines. However, if the bonus round is triggered with four or five scatters, the grid expands to a 5x4 or 5x5 layout, respectively, increasing the paylines to 20 or 40.

Furthermore, if two scatters appear on the reels, players are rewarded with a random power-up to be utilized during the next extra spins activation. These power-ups consist of additional extra spins, expanding symbols, and escalating payout multipliers of x1 or x2.

The Golden Bet feature enhances players' chances of activating bonus features, and in jurisdictions where permitted, they can purchase extra spins for 120 or 500 times the bet. This functionality adds an extra layer of excitement and strategy to the game.

The Driving Force behind YG Masters Games

The latest slot release is powered by Yggdrasil's groundbreaking GATI technology, as is the case for all Peter & Sons slots released through the YG Masters program. GATI (Game Adaptation Tools & Interface) is a preconfigured, standardized development toolkit designed to meet regulatory requirements and streamline the production and distribution of games in the industry. With the introduction of the Book of Books slot, Peter & Sons continues to demonstrate its commitment to delivering high-quality, engaging gaming experiences to players around the world.

Stuart McCarthy, Head of Product & Programs at Yggdrasil, said:“Book of Books is a game that we’ve been looking forward to releasing for some time now. Packed with plenty of engaging features, the title sees a classic game mechanic incorporated into the fantastic Peter & Sons art style.”

Yann Bautista, Business Development Manager at Peter & Sons, added:“Working in the YG Masters initiative allows us to focus on creating incredible gaming experiences, and Book of Books is a fun take on the hugely popular ‘Book of’ game style.”


“Yggdrasil unveils the source of power and wealth in Book of Books”,, March 16, 2023.

By Ivan Stefanovic